cfhd: drop some variables from the context

They are only used locally in one function.

2 files changed, 5 insertions, 7 deletions

diff --git a/libavcodec/cfhd.c b/libavcodec/cfhd.c
index f9ab950cfb..febb0c2b6b 100644
--- a/libavcodec/cfhd.c
+++ b/libavcodec/cfhd.c
@@ -173,6 +173,7 @@ static void free_buffers(CFHDContext *s)
 static int alloc_buffers(CFHDContext *s)
 {
     int i, j, ret, planes;
+    int chroma_x_shift, chroma_y_shift;
     unsigned k;
 
     if ((ret = ff_set_dimensions(s->avctx, s->coded_width, s->coded_height)) < 0)
@@ -183,15 +184,15 @@ static int alloc_buffers(CFHDContext *s)
     s->avctx->pix_fmt = s->coded_format;
 
     if ((ret = av_pix_fmt_get_chroma_sub_sample(s->coded_format,
-                                                &s->chroma_x_shift,
-                                                &s->chroma_y_shift)) < 0)
+                                                &chroma_x_shift,
+                                                &chroma_y_shift)) < 0)
         return ret;
     planes = av_pix_fmt_count_planes(s->coded_format);
 
     for (i = 0; i < planes; i++) {
         int w8, h8, w4, h4, w2, h2;
-        int width  = i ? s->coded_width  >> s->chroma_x_shift : s->coded_width;
-        int height = i ? s->coded_height >> s->chroma_y_shift : s->coded_height;
+        int width  = i ? s->coded_width  >> chroma_x_shift : s->coded_width;
+        int height = i ? s->coded_height >> chroma_y_shift : s->coded_height;
         ptrdiff_t stride = FFALIGN(width  / 8, 8) * 8;
         height           = FFALIGN(height / 8, 2) * 8;
         s->plane[i].width  = width;
diff --git a/libavcodec/cfhd.h b/libavcodec/cfhd.h
index 05d251132c..cae571a681 100644
--- a/libavcodec/cfhd.h
+++ b/libavcodec/cfhd.h
@@ -75,9 +75,6 @@ typedef struct CFHDContext {
 
     GetBitContext gb;
 
-    int chroma_x_shift;
-    int chroma_y_shift;
-
     int coded_width;
     int coded_height;
     int cropped_height;